<!--svg-->
<template>
  <div
    v-if="isExternal"
    :style="styleExternalIcon"
    class="svg-external-icon svg-icon"
    v-on="$listeners"
  />
  <svg v-else :class="svgClass" aria-hidden="true" v-on="$listeners">
    <use :xlink:href="iconName" />
  </svg>
</template>
<script>
export default {
  props: {
    iconClass: {
      type: String,
      required: true
    },
    className: {
      type: String,
      default: ''
    }
  },
  data () {
    return {}
  },
  methods: {},
  computed: {
    isExternal () {
      return /^(https?:|mailto:|tel:)/.test(this.iconClass)
    },
    iconName () {
      return `#icon-${this.iconClass}`
    },
    svgClass () {
      if (this.className) {
        return 'svg-icon ' + this.className
      } else {
        return 'svg-icon'
      }
    },
    //返回url请求位置
    styleExternalIcon () {
      return {
        mask: `url(${this.iconClass}) no-repeat 50% 50%`,
        '-webkit-mask': `url(${this.iconClass}) no-repeat 50% 50%`
      }
    }
  }
}
</script>
<style lang="scss" scoped>
.svg-icon {
  width: 1.2em;
  height: 1.2em;
  vertical-align: -0.18em;
  fill: rgb(191, 203, 217);
  overflow: hidden;
}
.svg-external-icon {
  background-color: currentColor;
  mask-size: cover !important;
  display: inline-block;
}
.rapid_icon {
  width: 60px;
  height: 60px;
}
</style>